Overview
The current state of fusion energy — what we know, what we don't, and why honest uncertainty matters.
Major Fusion Projects
Tracking 16 major public and private fusion energy efforts worldwide. Click milestones and uncertainties to expand.
Key Assumptions & Validation Status
Fusion energy rests on several critical assumptions spanning physics, engineering, resources, policy, and economics. Here is where each stands.
Viability Signals
Evidence for and against near-term fusion viability. Each signal includes a caveat to maintain intellectual honesty.
Waste Processing & Safety
How fusion waste compares to fission, what safety characteristics fusion reactors have, and the environmental profile of fusion energy.
Timeline Scenarios
When might fusion energy reach the grid? Four scenarios from optimistic to skeptical, with the reasoning behind each.
Funding Landscape
Private investment and government funding for fusion energy development.